Results 31 to 40 of about 94,613 (301)
Stellar Characterization and Radius Inflation of Hyades M-dwarf Stars from the APOGEE Survey
The Astrophysical Journal, 2023 We present a spectroscopic analysis of a sample of 48 M-dwarf stars (0.2 M _⊙ < M < 0.6 M _⊙ ) from the Hyades open cluster using high-resolution H -band spectra from the Sloan Digital Sky Survey/Apache Point Observatory Galactic Evolution Experiment ...
Fábio Wanderley +25 more
doaj +1 more source
M-dwarf binaries as tracers of star and brown dwarf formation [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 accepted for publication in MNRAS; 13 pages; 7 figures; 1 table;
Marks, Michael +4 more
openaire +2 more sources
The Carnegie Astrometric Planet Search Program
, 2009 We are undertaking an astrometric search for gas giant planets and brown dwarfs orbiting nearby low mass dwarf stars with the 2.5-m du Pont telescope at the Las Campanas Observatory in Chile.
Anglada-Escude, Guillem +10 more
core +1 more source
Detection of Young Massive White Dwarfs in Core-collapsed Globular Cluster NGC 362
The Astrophysical Journal LettersCore-collapsed globular clusters are ideal targets to explore the presence of stellar collision products. Here, we have studied 17 far-UV bright white dwarf (WD) members in the globular cluster NGC 362 using data obtained from the Ultra Violet Imaging ...
R. K. S. Yadav +4 more
doaj +1 more source
THE ULTRAVIOLET RADIATION ENVIRONMENT AROUND M DWARF EXOPLANET HOST STARS [PDF]
The Astrophysical Journal, 2013 The spectral and temporal behavior of exoplanet host stars is a critical input to models of the chemistry and evolution of planetary atmospheres. At present, little observational or theoretical basis exists for understanding the ultraviolet spectra of M dwarfs, despite their critical importance to predicting and interpreting the spectra of potentially ...
France, Kevin +10 more
openaire +4 more sources
Why human connection is the true metric of research success
FEBS Open Bio, EarlyView.Human‐centred mentorship can be shaped by mentor attributes, actions, intrinsic drive and career ambition. Drawing on reflections across Singapore and France, as well as workshop insights from FEBS‐IUBMB ENABLE 2024, this article shows that human‐centred mentorship creates the conditions for sustainable growth, well‐being and retention in research ...
Timothy Lin Yun Tan +3 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesWe analyze a catalog comprising 781,232 spectra from 641,095 M dwarf stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) low-resolution spectroscopic data release 9.
Wenjie Li +5 more
doaj +1 more source
The California Planet Survey II. A Saturn-Mass Planet Orbiting the M Dwarf Gl649 [PDF]
, 2009 We report precise Doppler measurements of the nearby (d = 10.34 pc) M dwarf Gl649 that reveal the presence of a planet with a minimum mass Msini = 0.328 Mjup in an eccentric (e = 0.30), 598.3 day orbit.
Apps, Kevin +8 more
core +4 more sources
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
Overestimated Pressure Broadening Misleads Model Spectra in Cool M Dwarf Stars
The Astrophysical Journal LettersAvailable one-dimensional stellar models fail to reproduce the observed spectrum of the ultracool M dwarf TRAPPIST-1. In particular, current models predict strong iron hydride (FeH) absorption due to the Wing–Ford bands at 0.99 μ m, yet this spectral ...
Ana Glidden +3 more
doaj +1 more source